Luncheon box and the like



. v A. OSTROWSKI LUNCHEON BOX AND THE LIKE Fild March 21, 1923 2Sheets-Sheet 1 A. .OSTROWSKI LUNCHEON BOX AND THE LIKE Filed March 21,1923 2 Sheets-Sheet 2 Mg inventor Patented Dec. 30, 1924.

ALFONS OSTROWSKI, F BERLIN, GERMANY, ASSIGNOR TO OSTROWSKI 8t 00., OF

' IBERLIN GERMANY.

Lirncnnon BQX Ann THE Linn.

Application filed March 21,1923. Serial No. 626,473.

To all whom it may concern:

Be it known that I, ALroxs Osrnowsxi,

a citizen of the German Republic, residing at 61 Markgrafenstn, Berlin,Germany, have invented certain new and useful Improvements in LuncheonBoxes and the like, of which the following is a specification.

This invention relates to sandwich, luncheon and thelike boxes which areprovided with separate compartments for the reception of food stuffs andof a bottle or flask, such as a thermos flask for example, and its mainobject is the provision of a box or canister of this kind which shall bemore serviceable and convenient for its purpose than the hitherto knownboxes of this class.

With this main object in view my invention mainly consists in a box,tin, canister or other receptacle, which is made of two parts and whichis extensible so that it may be handled more conveniently. Thecontainer, according to this invention consists of a top and bottomportion, of which the latter serves to hold food stuffs, such assandwiches for example, whereas the top portion is made as a slidingcover for the Fig. 2 a front elevation of a sandwich box in itscontracted position.

Fig. 3 is a side elevation, and V Fig. 4.- a front elevation, partly insection, of the box extended;

Fig. 5 is an inside plan view'of the cover, Fig. 6 a cross sectiononline A-B of Fig. 5.

Fig. 7 shows a detail in section, Fig. 8 is a cross section on line CDof Fig. 2,

Fig. 9 1s a longitudinal section on. line E-F of Fig. 2, parts beingbroken away.

According to this drawing the sandwich box consists of a bottomcompartment 1 and a top compartment 2'serving as a cover. and

adapted to slide over compartmentl in telescope-like manner, therebyalmost completely enclosing same. The cover 2 is provided with eyelets 3for attachinga handle or a strap. The end faces of the cover areprovided .with small leaf springs l which can be turned through a smallangle about their longitudinal axes. The said leaf springs are held bytongues 5 bent up from the material of the box, with aLcertain amount ofplay, that is to say, the

width of the springs is somewhat less than tongues, so that there issuhicient space for the springs to be slightly turned '(see Fig. 4); Theleaf springs at are provided with pins 6 and 7, which project throughholes 6 and '7 of the cover'portion as illustrated in Fig. 8. When thebox is in its collapsed position, the said. pins 6. and 7 pass throughholes 8 and. 9, and in its extended position the distance between thebends of the through holes 10 and 11, all provided in the face ends ofthe bottom part, thereby holding the two partstogether (Figs. 3 ands).

When the box is to be extended from the contracted position, the leafsprings lmust first be grasped at their ends and the pins 6 and 7 pulledout from their corresponding holes 6 and 7" as well as from the holes 8I and 9, whereuponthey are turned to a small degree (Fig. 4:). The leafsprings are then pulled so thatthey are returned to their normalposition, in which the pins again pro ect through theholes 6 and 7 andthereby bear on thewalls of the face ends of the .bottom portion" Thetwo parts of the boxmay be then pulled apart until the pins 6 and 7 oncoming opposite the holes 10 and 11, are pressed into these holes by thepressure of their springs 4, thuslock ing the'box in this extendedposition. It is preferableto arrange guide grooves, such 7 as 12 in Fig.l, in the face walls of thelower box, which facilitate the extension andcollapsmg of the dev ce by gu d ng the pins into their respective holes.In order to separate the parts, the leafsprings 4 must again be turnedand the pins 6 and 7 Withdrawn from the holes 6 and 7 whereupon the topmay be taken right off. r

In order to enable an easy application of the cover and to automaticallyguide the pins 6 and? tothe uppermost'holes'10 and spring 14 is provided(see Fig. 6), which is also fixed by tongues 5 stamped and bent up fromthe material of the box as indicated in- Fig. 7. The flask, for examplea thermos flask, is placedwbetween the arms of the spring '14 and islocked in position by a strap hinged to one end of the spring and, atits other end, provided with a hook 16 which is passed through acorresponding slot in the other end of the spring. This way of fixingthe flask ensures a proper hold and, at the same time, renders theremoval of the flask very easy.

Ventilation holes (not shown) may be provided both in the lower and inthe upper portions of the box and, if desired, ad-

ditional holes,-similar to 8 and 9, for the reception of the pins 6 and7 may be provided in the face walls of the bottom part, so as to enablean intermediate position of the parts between the two end positionsabove referred to.

A particular advantage of the new container is that it is possible toform the various parts, namely the top and bottom portions, the leafsprings for the locking pins and the spring hoop for the thermos flaskby stamping, thus reducing the cost of production toa minimum. Thedevice is both serviceable and eflicient.

What 1 claim is a 1. An extensible luncheon box and the like comprisinga bottom compartment, a top compartment slidably connected thereto, theend walls of the bottom compartment having a plurality of pairs of holestherein, a leaf spring located on each end wvall ofthe top compartment,each end of the said springs having a pin adapted to project through anadjacent hole of the said end wall of said top compartment, said pinsbeing adapted to project into the said holes in the bottom compartment.

2. An extensible luncheon box and the like comprising a bottomcompartment, a top compartment slidably connected thereto, the end wallsof the bottom compartment having a plurality of pairs of holes therein,a leaf spring turnably, connected to each end wall of the topcompartment,

each end of the said springs having a .pin

adapted to projec-tthrough adjacent holes in the said end wall of saidtop compartment, said pins being adapted to project through said holesin the bottom compartment.

3. An extensible luncheon "box and the like, comprising a bottomcompartment, a

topcompartment slidably connected thereto, said top compartment havingmeans adapted to hold a flask, bentup tongues stamped out in pairs fromthe end walls of said top compartment, leaf springs turnably connectedto said top compartment, each spring being located between a pair oitongues with a small amount of free play, each end of each-said springhaving a pin adapted to project through holes in the end wall of the topcompartment, the-end walls of thebottom' compartments having holesadapted to'receive the said pins.

4:- An extensible luncheon box and the like comprising a bottomcompartment, a top compartment slidably connected thereto, means adaptedto hold a flask in said top compartment, a leaf spring connected to eachend wall of said top compartment, each end of the said springs having apin adapted to project inwardly through the said end walls of said topcompartment, the lower parts of the end walls of the bottom compartmentand the upper parts of the said end walls each having pair of holesadapted to receive the pins,

5. An extensible luncheon box and the like comprising a bottomcompartment, :1 top compartment slidably connected thereto, meansadapted to hold a flask in said top compartment, a leaf spring connectedto each end wall of said top compartment, each end of the said springshaving a pin adapted to project inwardly through the said end walls, thelower parts of the end walls of the bottom compartment and the upperpart of each end wall each having a pair of holes adapted to receive thepins,

and also having grooves adapted to guide the pins from the said lowerholes to the said upper holes. i

6. An extensible luncheon box and the like comprising a "bottomcompartment, a top compartment slidably connected thereto and adapted toact as :a cover, a hoopshaped spring located in said cover and adaptedto hold a flask, a clip hinged to one end of said spring and adapted tolock the flask in position, said clip having a hooked end coacting witha slot in the free end of the spring, and resilient means adapted tohold the said bottomand top compartments in a plurality of relativepositions.

7. An extensible luncheon box and the like comprising abo'ttom'compartment, a

top compartment slidably connected thereto, resilient means includingspring controlled pins adapted to hold the said co-mpartments in aplurality of relative positions, the end walls of the lower compartmenthaving holes adapted to receive said pins, said end walls havinginwardly curved top edges to guide the pins when applying the topcompartment to the lowercompartment. 1

8. An extensible luncheon box and the tracted condition, said resilientmeans being like comprising a bottom compartment, a attached to the saidcompartments by benttop compartment slidably connected thereover tonguesstamped out from the mate- 10 to, resilient means adapted to suspend arial of the compartment Walls.

5 flask and located in said top compartment, In Witness whereof I affixmy signature.

and resilient means adapted to hold the said compartments in bothextended and con- 7 ALFO'NS OSTROVV SKIV

